Map is buggy. Bad geometry or something. Terrible FPS when spawning on runway. I get decent frames (dipping only to 50) in almost ANY of the worst situations this game can generate, massive cons, numerous fires, trees, high resolution, etc...
This game had me dropping down to 30 and others even worse as we spawned on the runway. Taking off was terrible. It has to do with the terrain because as I was coming in to land at the end I had my INFO up at the top of my screen and it was pegged at 60 coming in off the water, and as soon as the shoreline began to show some detail it dropped to 37. It got worse as I came in on final.
To me that's not a good map. Sacrificing HALF my performance for only marginally better eye candy may be nice for the map MAKER, but not the map USERs. Many folks were grumbling on squad vox and range about this.